Tom, You’ll want to take a look at ProtectedNiFiProperties [1] and NiFiPropertiesLoader [2]. ProtectedNiFiProperties provides a decorator on a normal NiFiProperties class which allows access to various values via key access or through named getters. It “unprotects” the values and can return a regular NiFiProperties instance with direct access to the plain values. The NiFiPropertiesLoader can be instantiated with the decryption key (currently the only supported protection scheme is AES/GCM encryption) and can load multiple instances of the NiFiProperties directly from any nifi.properties file simultaneously.
If you wanted to do this with a non-native file (i.e. a source that NiFi does not have an internal mechanism for reading), you’d probably use a GetFile -> ExtractText -> EncryptContent processor chain, or the ExecuteScript processor (Groovy and other scripting languages have extensive tooling provided to easily read from files, parse text, etc.). [1] https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-properties-loader/src/main/java/org/apache/nifi/properties/ProtectedNiFiProperties.java [2] https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-properties-loader/src/main/java/org/apache/nifi/properties/NiFiPropertiesLoader.java <https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-properties-loader/src/main/java/org/apache/nifi/properties/NiFiPropertiesLoader.java> Andy LoPresto [email protected] [email protected] PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4 BACE 3C6E F65B 2F7D EF69 > On Sep 23, 2016, at 3:28 PM, Tom Gullo <[email protected]> wrote: > > I'm using v1.0. I want to access some values that are in the nifi.properties > file. And I would like to just use the nifi.properties file because I'll be > encrypting some of these values and I want to use the built in encryption > feature. > > Thanks > > On Fri, Sep 23, 2016 at 6:05 PM, Andrew Grande <[email protected] > <mailto:[email protected]>> wrote: > Which NiFi version? With 1.0 there are some bits for variable registry > available, basically one can reference values from external config files via > regular EL expressions. > > Andrew > > > On Fri, Sep 23, 2016, 6:00 PM Tom Gullo <[email protected] > <mailto:[email protected]>> wrote: > I want to read in values from nifi.properties in a Groovy ExecuteScript > processor. What's the best way to do that? > > Thanks > -Tom >
signature.asc
Description: Message signed with OpenPGP using GPGMail
